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Vladimir [108]
4 years ago
14

Sorting numbers prime or composite

Mathematics
1 answer:
murzikaleks [220]4 years ago
7 0

prime: 11, 13, 29

composite: 10, 15, 21

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Rectangle RSUT has diagonals that meet at point x.
Stels [109]

Answer:

x=12.5

y=10

Step-by-step explanation:

Properties of rectangle:

  • Opposite sides are congruent
  • All angles are right angles
  • Diagonals bisect each other
  • Diagonals are of equal length

so from the properties we came to know that diagonals bisects each other and diagonals are of equal length  

Given Rectangle RSUT has diagonals that meet at point X.

⇒RX=SX=UX=TX=\frac{1}{2}RU=\frac{1}{2}ST

⇒RX=\frac{1}{2}ST

⇒4x=\frac{1}{2}(100)

⇒x=12.5

Also XU=RX

⇒(4)(12.5)=5y

⇒5y=50

⇒y=10

3 0
3 years ago
A. It has reflectional symmetry with one line of symmetry.
Helga [31]

Answer:

The answer would be D.

Step-by-step explanation:

No matter which way you turn this shape, it will not be symmetrical

8 0
3 years ago
Find the area of the rectangles with the following side lengths.
KatRina [158]

Answer:

A. 5/3in

B. 20/3in

C.20/6in.

D.1in.

Step-by-step explanation:

3 0
3 years ago
Lance has 3 time as many pencils as Nick, and they have 84 pencils together. How many pencils does each of them have?
Rufina [12.5K]

Answer:

21 pencils for Nick and 63 pencils for Lance

Step-by-step explanation:

  • Lance is said to have 3 times the pencils Nick has.
  • Let's keep the number of pencils Nick has as x.
  • If Nick has x pencils that means Lance has 3x pencils.
  • The total number of pencils present is 84.

Now let's make an equation out of the information above:

3x + x = 84

Now solve for x.

3x + x = 84

4x = 84

x = 84/4

x = 21

So Nick has 21 pencils

Now for Lance:

3x

3 * (21) = 63

So Lance has 63 pencils

63 + 21 = 84 pencils

8 0
3 years ago
In triangle A B D , the measure of angle A is 10 degree less than the measure of angle B . The measure of angle D is 20 degree m
elixir [45]

Answer:

<u><em>Measure of angle A is 27 7/9 degrees.</em></u>

Step-by-step explanation:

Lets call measure of angle A is <em><u>X-10</u></em>

Lets call measure of angle B is X

Lets call measure of angle D is 2.5X+20

We know that the sum of triangles add up to 180 degrees

X+X-10+2.5X+20=180

X=37 7/9

So measure of angle A is 27 7/9 degrees.

I hope this is right. :)

8 0
3 years ago
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